Iowa Dams
4,124 dams tracked by the National Inventory of Dams
Total Dams
4,124
High Hazard
91
2.2%
Poor / Unsatisfactory
25
Average Age
46 yrs
Hazard Classification
High91 (2.2%)
Significant274 (6.6%)
Low3,759 (91.1%)
Condition Assessment
Satisfactory259 (6.3%)
Fair81 (2.0%)
Poor / Unsatisfactory25 (0.6%)
Not Rated3,759 (91.1%)
Federal
25
State
141
Local
1,938
Private
2,014
Tallest Dams
- Coralville Dam132 ft
- Saylorville Dam125 ft
- County Basin Dam104 ft
- Rathbun Dam100 ft
- Brushy Creek Dam100 ft
High Hazard Dams
- Coralville DamHigh
- Saylorville DamHigh
- Rathbun DamHigh
- Brushy Creek DamHigh
- Big Creek Barrier DamHigh
Poor Condition Dams
All Dams in Iowa
Showing 3326–3350 of 3,759
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Vanderwerff Dam Jasper County | 29 | 1975 | Low | Not Rated |
| Vander Zyl Dam Jasper County | 37 | 1994 | Low | Not Rated |
| Vande Stroet Dam Sioux County | 40 | 1967 | Low | Not Rated |
| Van Donselar Dam Mahaska County | 30 | 1998 | Low | Not Rated |
| Van Fossen Dam Page County | 27 | 1975 | Low | Not Rated |
| Van Haaften Dam Marion County | 32 | 1961 | Low | Not Rated |
| Van Hall Dam Marion County | 40 | 1996 | Low | Not Rated |
| Van Hall Dam Union County | 8 | 1995 | Low | Not Rated |
| Van Horn Wetland Dam Carroll County | 12 | 1994 | Low | Not Rated |
| Van Kekerix Dam Ida County | 25 | 1998 | Low | Not Rated |
| Van Roekel Dam Poweshiek County | 27 | 1996 | Low | Not Rated |
| Van Scoy Dam Madison County | 24 | 1985 | Low | Not Rated |
| Van Sickle Dam Boone County | 40 | 1995 | Low | Not Rated |
| Van Veldhuizen Dam Mahaska County | 7 | 1996 | Low | Not Rated |
| Van Veldhuizen Dam Mahaska County | 27 | 1977 | Low | Not Rated |
| Van Wyk Dam Marion County | 26 | 1988 | Low | Not Rated |
| Van Wyk/Vogel Dam Poweshiek County | 33 | 1989 | Low | Not Rated |
| Van Zante Dam Jasper County | 21 | 2006 | Low | Not Rated |
| Varese Dam Appanoose County | 28 | 1958 | Low | Not Rated |
| Vaubel Dam Tama County | 29 | 1983 | Low | Not Rated |
| Vaubel Dam Tama County | 19 | 1969 | Low | Not Rated |
| Veldhuizen Dam Mahaska County | 29 | 1985 | Low | Not Rated |
| Velky Dam Tama County | 25 | 1987 | Low | Not Rated |
| Vernon Spring Dam Howard County | 8 | 1857 | Low | Not Rated |
| Vershaw Dam Scott County | 31 | 2005 | Low | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.